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The Application of Quaternions to Strap-Down MEMS Sensor Data.


ABSTRACT: We describe the mathematical transformations required to convert the data recorded using typical 6-axis microelectromechanical systems (MEMS) sensor packages (3-axis rate gyroscopes and 3-axis accelerometers) when attached to an object undergoing a short duration loading event, such as blast loading, where inertial data alone are sufficient to track the object motion. By using the quaternion description, the complex object rotations and displacements that typically occur are translated into the more convenient earth frame of reference. An illustrative example is presented where a large and heavy object was thrown by the action of a very strong air blast in a complex manner. The data conversion process yielded an accurate animation of the object's subsequent motion.

SUBMITTER: Dickson PM 

PROVIDER: S-EPMC8621449 | biostudies-literature |

REPOSITORIES: biostudies-literature

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